Method of making columns and the like



FL E.LJFH3C) METHOD OF MAKING COLUMNS AND THE LIKE Dec.31,1929.

. Filed March 9, 1929 2 sheets sheet l IIIIIIIIIIIIIIIII .llIIIllIllllIIl I IIIIII I I l III -Il I i I I I I|l| llllll II Dec. 1929- v A. E. LING'O 1,741,704

METHOD OF MAKING CQLUMNS AND THE LIKE 2 Sheets-Sheet 2 Filed March 9, 1929 Patented Dec. 31, 1929 UNITED STATES PATENT OFFICE ARGHIBALD E. LINGO, OF COLLINGSWOOD, NEW JERSEY, ASSIGNOR TO JOHN E. LINGO & SON, INCL, OF CAMDEN, NEW JERSEY, A CORPORATION OF NEW JERSEY METHOD OF MAKING COLUMNS AND THE LIKE Application filed March 9,

This invention relates to a method'of making columns and the like, and it relates more particularly to a method of making columns having either a straight taper or an entasis,

6 such, for example, as are used as flagpoles or the like.

The principal object of my invention is to provide an improved method of making columns of any desired length and wall thickness, and having either a straight taper or an entasls.

A further object of my invention is to pro vide an improved method of making columns, particularly of the type used as fiagpoles and the like, whereby said columns may be readily fabricated in an unlimited variety of dimensions without necessitating the use of shop equipment of prohibitive cost.

In my previous application for Letters Patent, filed June 9, 1927, Serial No. 197 ,663, there is shown and described a method of making columns whereby the same may be readily fabricated in various lengths and wall thicknesses, and having a straight taper or 5 an entasi s as desired, and my present invention, while embodying the'same broad principle as that contemplated by my said previous application, also contemplates certain improvements in the method of making columns whereby the same may be more readily and expeditiously shaped, requiring less skill on the-part of the workmen making the same, rendering the process more economical, reducing the manipulation required, and insuring more uniform results.

The nature and characteristic features .of my present invention will be more readily understood from the followingdescription, taken in connection with the accompanying drawings forming part hereof, in which:

Figure 1 shows a finished column, in this case intended for use as a flagpole;

Fig. 2 is a front view of one of the sections in the present instance the lowermost) making up the column,,and also showing the first step in the'method of making the same;

Figs. 3 and 4 are views similar to Fig. 2, but of sections of successively smaller diameter than that shown in Fig. 2. the same being used 1929. Serial no. 345,783.

for forming the progressively smaller sections of the column;

Fig. 5 is a view illustrating one of the sections of the column at an intermediate stage of its formation, and having associated therewith certain forming rings used for shaping the column; I

Figs. 6, 7, 8, 9, and 10 are, respectively, cross sectional Views of a seriesof ring members used for shaping the sections of the column in the manner illustrated in Fig. 5;

Fig. 11 is a face view of one of the ring members;

, Fig. 12 is an enlarged sectional view of the adjoining ends of two sections of the column, illustrating the preferred manner of uniting the same to each other; and

Fig. 13 is a transverse view,taken on the line 1313 of Fig. 12.

Referring to the drawings, in the particular embodiment of my invention therein shown, 1 denotes a column, which may be made of a singletubular section, or of a plurality of sections 2, as may be required in each particular instance.

Whether the column be made of one or more sections, each section may be made from a length of pipe, such as is readily procurable in the open market, in various diameters and various thicknesses.

A slot 7 is first cut in the tube. This slot is usually of elongated V shape, and if the column is to be given an entasis, the edges of the slot are correspondingly curved. The cutting is preferably done by meansof an acety- '1en e torch, although it will, of course, be understood that other means for cutting the slot may be employed if desired.

It will also be noted that in some instances, usually in the case of the lowermost section of; the column, the slot will extend for a portion only of the length of thepipe (as in Fig.

2). while in other instances, the slot will extend the full length thereof (as in Figs. 3 and 4).

For the purpose of shaping the sections of the columns, there are provided a plurality of forming rings 8. These rings are provided in series, and the aperture 9 of each ring is of a diameter slightly less than the aperture 9 of the next ring in the series. At the end of each aperture 9 of each ring a chamfer 10 is preferably provided.

After the section has the slot 7 cut therein, as hereinbefcre described, the largest ring which is to be used in connection with the shaping of said section is forced. over the end of the section where the V-shaped opening is largest, and which consequently is to be the smaller end ofthe finished section. The ring 8 is then pushed along the pipe 2 by'means of a suitable press, until the .same is brought to the point where the diameter of the aperture 9 of said ring corresponds to the diameter of the finished section. The next smaller ring is then placed on the same end of the pipe 2, and isbrou-ght to aposition where the diameter of its aperture *9 corresponds to the diameter of the finished section, and so on.

The rings are successively forced over the pipe from the end thereof to the proper positions along the length of the section. The section will thus be brought to the finished shape, after which the abutting edges of the slotted portion may be welded. at one or more points 11, between the several rings 8.

The rings may now be removed by-a reverse action in \the press. At this stage of the process, the rings may ordinarily be removed at one mounting in the press, as it will be seen that as thering of the largest internal diameter is brought to the position where it encounters the next ring in the series, it will be freed of-positive engagement with the pipe, so that as the rings are forced off, the press will never at any one time be called upon to exert a greater force than is necessary to remove a single ring.

After the rings are removed from the section of the column, the remaining edges of the slot are welded together throughout the entire length of the section, preferably by the arc welding process.

To facilitate the placing of the respective rings on the sections, the ends of each section may be chamfered as at 3, for co-operation with the chamfered portion 10 of each ring, and the chamfer 3 will also assist in the welding of the adjacent ends ofthe several sections of the column, when the same is made 551p of a plurality of sections as shown in Where the column ismade up off-more than one section, as shown in Fig. 1 of the drawings, a plurality of sections are first formed as described above, the same, however, being of successively decreasing size, according to the amount of taper required.

The end portions of the several sections may be provided with holes 4, and a reinforcing means,-such as-a tube 6, may be in sorted in the adjoining ends of the two-sections, after which the 1101684 may be filled up with metal, deposited preferably by the arc welding process. The adjoining ends of the sections may now be united to each other by filling up the V-shaped annular space between the adjacent ends of the respective sections which is provided by reason of the chamfer at the ends of each section.

It will be seen that there is thus provided a novel method of making columns which is particularly adaptable for the manufacture of flagpolos, which permits the fabrication of such columns in the Wide variety of sizes called for, without necessitating the employment of shop equipment of prohibitive cost.

It will also be noted that no very great degree of skill will be required in bringing the colmnns to the desired shape, and that the process is expeditious and economical.

I claim:

1. The method of making a column which consists in cutting an excision in a tubular section, forcing a series of rings on said sec,- tion, each ring in said series being brought to a point where the diameter of the finished column corresponds to the internal diameter of said ring, uniting the edges of the excision to each other at points between said rings, and then removing said rings.

The method of making a column which consists in cutting an excision in a tubular section, forcing a series of rings on said section, each ring in said series being brought to a point where thediameter of the finished column corresponds to the internal diameter of said ring, uniting the edges of the excision to -each other at points between said rings, then removing said rings, and thereafter uniting the remaining portions of the excision.

3. The method of making a column which consists in cutting an elongated V-shaped.

excision in a tubular section, forcing a series .of rings of varying internal diameteron said section, each ring in said series being brought to a point where the diameter of the finished column corresponds to the internal diameter of said -ring,unitingtheedges of theexcision to each other at points between said rings, then removing said rings,-and thereafter uniting the remaining portions-of the excision.

i. The method of making a column which .consists in cutting an elongated V-shaped excision 1n a tubular section, forclng a serles of rings of varying internal diameter on said sectlon, each ring in .each'series be ng brought to a point where the diameter of the finished column correspondsto the internal diameter of said r1ng,"weld1ng the edges of the excision to each other at points between sa d mugs,

and then removing said'rings.

5. The method of making a column which consists in cutting an elongatedV-shaped excision in a tubular section, forcing a series of rings of varying internal diameter on said sectlon, each ring in sand series being brought to a point where the diameter of the finished column corresponds tothe internal diameter of said ring, welding the edges of the excision to each other at points between said rings, then removing said rings, and thereafter Welding the remaining portions of the excision.

6. The method of making a column from a plurality of tubular sections which consists in cutting an excision in each section, forcing it seriesof rings on each section, each ring in said series being brought to a point where the diameter of the finished column corresponds to the internal diameter of said ring, uniting the edges of the excision in each section to each other at points between said rings, then removing said rings, and then uniting the ends of the sections to each other.

7 The method of making a column from a plurality of tubular sections which consists cutting an excision in each section, forcing a series of rings on each section, each ring in said series being brought to a point where the diameter of the finished column corresponds to the internal diameter of said ring, welding the edges of the excision in each section to each other at points between said rings, then removing said rings, thereafter welding the remaining portions of the excisions, and then welding the ends of the sections to each other.

8. The method of making a column from a plurality of tubular sections which consists in cutting an elongated V-shaped excision in each section, forcing a series of rings of varying diameter on each section, each ring in said series being brought to a point where the diameter of the finished column corresponds to the internal diameter of said ring, uniting the edges of the excision in each section to each other at points between said rings, then removing said rings, thereafter uniting the remaining portions of the excisions, and then uniting the ends of the sections to each other.

In testimony whereof, I have hereunto signed my name.

ARCHIBALD E. LIN GO. 

